<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<style>
    .loadding-test {
        position: relative;
        width: 25px;
        height: 25px;
        animation: circleMoveTwo infinite .75s linear;
        border: 2px solid #fff;
        border-top-color: rgba(0, 0, 0, .2);
        border-right-color: rgba(0, 0, 0, .2);
        border-bottom-color: rgba(0, 0, 0, .2);
        border-radius: 100%;
    }

    @keyframes circleMoveTwo {
        from {
            transform: rotate(0deg);
            -webkit-transform: rotate(0deg);
            -moz-transform: rotate(0deg);
            -o-transform: rotate(0deg);
            -ms-transform: rotate(0deg);
        }

        to {
            transform: rotate(360deg);
            -webkit-transform: rotate(360deg);
            -moz-transform: rotate(360deg);
            -o-transform: rotate(360deg);
            -ms-transform: rotate(360deg);
        }
    }
</style>

<body>
    <!-- 小圆加载 -->
    <div class="loadding-test"></div>
</body>

</html>